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1、I. Learning Aims 学习目标1. 同学们复习形容词比较级和最高级的用法，熟练掌握它们的用法。2. 同学们谈论地球上水资源和热带雨林的基本情况以及它们对于地球上生物的重要性，增强保护水资源和森林资源的意识。II. The Important Points 重点1. 请同学们熟读生词表中P81-82的词汇。并标出读不准的词。2. 重点掌握下列词的用法：cover v. 覆盖；掩盖 control v. 控制protect v. 保护fill v. 装满；填空thousands of 成千上万 fillwith用填满 on earth在地球上；到底，究竟make up组成，构成 3.
2、同学们需掌握下列句型： Rainforests are important to us. 热带雨林对我们很重要。 Rainforests are becoming smaller and smaller. 热带雨林变得越来越小了。The plants in the forests help to make the air fresher. 雨林里的植物使得空气更新新。 Water makes up the largest part of the human body.人体的大部分都是由水构成的。 They cant live at all without water.没有水，它们根本都不能生存
3、。 We must save every drop of water. 我们必须保护每一滴水。III. The Difficult Points 难点without的用法IV. Preview自主预习1.请同学们阅读课文，在书上完成1b。2.请同学们思考并写出the importance of rainforests:_3. 请同学们阅读2a,在书上完成2b。4.将第三部分排出顺序, 组成一篇短文。. Hot Links知识链接1. cover v. 覆盖 (1) coverwith 用覆盖树木覆盖着这个岛的大部分。Trees _ most parts of the island. 他们给她盖
4、上了毛毯。They _her _ a blanket. (2) cover n. 封面，封皮，封底；from cover to cover 从头到尾2. thousands and thousands of 成千上万 =thousands of当hundred, thousand, million, billion等表示不确定数目时，常用复数形式，后面跟介词of，意为“数以百计的，成千上万的，数百万计，几十亿”。如：天上有数百万颗星星。There are _ _ stars in the sky. 当这些词与具体数词连用时不用复数形式。如：我们年级有六百个学生。There are _ _ st
5、udents in our grade.3.smaller and smaller 越来越小 “形容词比较级 + and +形容词比较级”结构表示“越来越如：她对英语越来越感兴趣了。She is becoming _ _ _ interested in English.【知识回顾】“the + 形容词比较级， the + 形容词比较级”表示“_”。如： 越仔细，你就越少出差错。 _ _ _ you are, _ _ mistakes you will make. 4. protect v. 保护 protect sth. / sb. from sth. 保护某物 / 某人免于如：这把伞可以保护
6、她的脸免受太阳光照射。This umbrella can _ her face _ the sun.5. in fact 事实上 make up 构成in fact = as a matter of fact 实际上，事实上 make up 形成，构成，占据 如：女学生占全部学生的百分之六十。 Girl students _ _ 60 of all the students.6. drop 滴drop n. 滴 一滴水 a drop of water 泪珠 a tear drop 大滴的雨水 big drops of rain drop v. 掉下，落下，放弃 如：我的玻璃杯掉到了路上。My
7、glass _ on the floor. . Having a Quit当堂检测 .根据汉意或句意和首字母提示补全单词或用所给词的适当形式填空.1. Dont swim in this l_. Its dangerous.2. We should p_ the wild animals.3. In f_, he cant speak English at all.4. Please save every d_ of water on earth.5. Its d_ here. Please turn on the light.单项选择。( ) 1. Five _ people are wai
8、ting for the train.A. hundred ofB. hundreds C. hundred D. hundreds of( ) 2. Eighty students _ our class.A. make-up B. make up C. make of D. make from( ) 3. He _ his schoolbag _ a lot of books.A. fills; in B. fills; of C. filled; with D. filled; of( ) 4. The number of wild animals is becoming _.A. mu
9、ch more small B. much more smaller C. smaller and smaller D. small and small( ) 5. The TV is _ for people to watch clearly.A. small enough B. enough small C. large enough D. enough large. Homework课外作业 1.认真读、背今天的“学习重点” 和“知识链接”，并默写。2.背诵Section C的单词短语。3.按照Section D中自主预习中的要求预习 Section D。4. 阅读理解。Plants a
10、re very important. This is because plants can make food from air, water and sunlight. Animals and man cannot make food from air, water and sunlight. Animals can get their food by eating plants and other animals. Man gets his food by eating plants and animals, too. So animals and man need plants in o
11、rder to live. This is why there are so many plants around us.There are two kinds of plants: flowering plants and non-flowering plants. Almost all the trees around us are flowering plants. You can know some trees from their flowers and fruit. Non-flowering plants do not grow flowers. You can not see
12、many non-flowering plants around you.If you look carefully at the plants around you, you will find that there are many kinds of plants. Some plants are large and some are small. Most of them are green. Thanks to the plants around us we can live on earth.( ) 1.We need many plants around us because _.
13、A. plants can grow easilyB. plants are greenC. we can get what we need from plantsD. we like all kinds of plants( ) 2.There are so many plants around us because _.A. man doesnt need any plants B. most animals dont eat plantsC. man and animals need plants to live D. the earth will become more beautiful( ) 3.There are _ non-flowering plants than flowering plants around us.A. much fewer B. much more C. much larger D. much better( ) 4.Which of the following does NOT come from a plant?A. Basket B. Bread C. Cabbage
